Any restrictions, limitations or regulations relative to the issuance of such bond or the execution of such contracts pursuant to the authority herein contained in any other act shall not apply to the bonds issued under this chapter or the execution of such contracts pursuant to the authority herein contained, it being intended that this chapter is full authority for the issuance of such bonds and the execution of such contracts. The provisions of sections 43-314, 43-406, 43-407 and 43-408, Idaho Code, shall not apply to any contract or agreement entered into by an irrigation district pursuant to the provisions of section 43-2301, Idaho Code, nor to the issuance of any bonds by an irrigation district pursuant to the provisions of section 43-2301, Idaho Code. This chapter being necessary to secure and preserve the public health, safety, convenience and welfare, and for the security of public and private property, it shall be liberally construed to effect the purposes of this chapter.